Unfortunately, the post you're reacting to was about conservative or liberal political policies and assumed that a religious L or C would have to vote a certain way in order to be true to Jesus' teachings, which isn't true at all. Jesus was not a politician but instead called people to be upright in their own lives.
BUT God called upon Kings and rulers to enforce and carry into practice his laws. He did not release men with actual political authority from the duty to obey him and carry out those laws. Prophets, such as Amos were sent by God specifically to excoriate kings for not carrying out the things that God had ordained as far as poverty relief and treatment of various protected people. Individual men were not rulers, and were not held accountable for the failure of the ruler to enforce the laws of God, but the RULERS WERE HELD ACCOUNTABLE. Kings did not have the discretion to decide not to use their offices, including the power to tax and redistribute, to ensure that widows and orphans, et al, were not provided for. Kings were not left to rule according to their free will. They were commanded to rule in a way that carried out God's laws. If the poor were not fed, the King was derelict, for he had been given the power, including the power to tax, to make sure that God's law of poverty relief was carried out (among other things).
There was no place for the king to hide. He was held accountable by God if he did not use his power - given to him by God - to carry out God's poverty law, and to enforce God's moral code.
Now then, you might reply that we do not have kings. That's true but not so fast. We no longer have a King (and, mind you, the Christian King DID have redistributive poverty programs, and DID have hospitals and the like), but the REASON we no longer have a king is because we, of our own sovereign choice, rose up and drove off or killed the king, and took the power for ourselves. So We the People, now, collectively, each hold a piece of his crown.
By destroying the office, we did not in any way destroy the duty of the office to execute God's laws. That responsibility remains with the ruling sovereign. If We, the People, are the ruling sovereign (and we are), then we have the same legal obligation as the kings we deposed and whose thrones and crowns we subdivided among our hands. We cannot rule directly, as the kings did, but we do rule indirectly, through the vote. We're very proud of our right to vote. We are, collectively, the king, and that means that actually , yes,m, we are absolutely bound by God's law to support and enact laws that carry out God's law with regards to poverty relief and morality as well. We vote, of our own will, to do either our duty, as king, to do the holy thing ordained by God, or we choose to be apostate fractional kings and vote for the laws of Ba'al and Satan.
If you think that you are not accountable to God for the moral content and reasoning for your political stances and votes, you're wrong. We chose to make ourselves king, in our republics. This exposes us to the royal duties imposed by God, and divine accountability for shirking them. You vote is not outside of the sphere of religion. It is not a place where you are allowed(by God) to blow off the moral law of God. That's a bit of a pity, given the degree to which our politics is so often a matter of choosing the lesser evil.